Locking your centro – Palm PDA CentroTM Smart Device User Manual
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Y O U R P E R S O N A L S E T T I N G S
L O C K I N G Y O U R C E N T R O A N D I N F O
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5 When prompted, enter the current PIN
and select OK. (Unless you changed 
your PIN, enter the default PIN, 
provided with AT&T account materials.) 
6 If you want to change the PIN, select
Change PIN, enter a new PIN, and then 
select OK. Repeat this step to verify the 
new PIN.
7 If your SIM card supports fixed number
dialing (FDN), select Advanced and 
check the Enable Fixed Number 
Dialing box to restrict dialing to the 
numbers in your FDN list. When 
prompted, enter your PIN2 and then 
select OK. 
8 Turn your phone off to activate the
phone lock feature.
9 To turn your phone on again, press and
hold Power/End
, enter your PIN, and
then select OK to unlock your Centro.
Your SIM card locks again when you turn 
off your Centro and then turn it back on.
To disable the current Phone Lock settings:
1 Press Phone
.
2 Press Menu
.
3 Select Options, and then select Phone
Lock.
4 Uncheck the Lock SIM box.
5 Enter your PIN code.
6 Select OK.
Locking your Centro
To protect your personal information, you 
can lock your Centro so that you need to 
enter your password to access any of your 
information or to use any of the features on 
your Centro, including the phone. You can, 
however, still make emergency calls when 
your Centro is locked.
IMPORTANT
If you lock your Centro, you
must enter the exact password to unlock it. 
If you forget the password, you need to 
perform a hard reset to resume using your 
Centro. Performing a hard reset while your 
Centro is password locked deletes all the 
entries in your Centro and completely 
reformats it. If you use password 
protection in Palm Desktop software, you 
TIP
To manage your FDN list, press
Applications, select SIM Book, press Menu, 
and then select Modify FDN from the 
Options menu.
